Air cooling and circulating device



Dec. 17, 1940. w. L. MORRISON AIR COOLING AND CIRCULATING DEVICE .ori inal Filed May 20, 1935 5 6 4 a 2 m w a .0 B g m 1 I1 0 0 m e W o 0 r v 07000 x 9 ,7 W R 6 6 W 2 G 1 m" m m 1 m 0 2 2 II? 2/ 2- U 5 3 x m m "T Q .n g 7 2 H 9 ,2 9 Q l 1 8 Patented Dec. 17, 1940 v e UNITED STATES PATENT OFFICE AIR COOLING AND cmoom'rma nnvrcn Willard L. Morrison, Lake Forest, 111.

' Application May 20, 1935. Serial No. 22,313

Renewed July 31, 1939 8 Claims. (Cl. 62-129) This invention relates to an air cooling and 'cated at the window, the part being inserted circulating device and has for an object to probetween the top of the window sash and the vide a new and improved device of this descripframe. I have also illustrated double windows tion. in order to provide a better insulated room. The

The invention has as a further object to procondenser element 1 is located in a conduit 8 vide an air cooling and circulating device parwhich has a bent portion 9 communicating with ticularly adapted for use in connection with the interior of the room. This conduit may be rooms in which human beings are received. located in the window opening or at any de- The invention has as a further object to prosired point, and I have illustrated it as being vide such an' air cooling'and circulating device, arranged so that the portion 9 is above the tops 1 wherein there is a refrigerating apparatus with of the window sash and the window frame. By a cooling element and a condenser element,,and arranging the conduits for the cooling element the two elements are utilized for producing a and the'condenser element so that they may be circulation of air through the room. easily and quickly inserted in the window open- The invention has further objects which will ings, it will be seen that I provide a cheaper be more particularly pointed out in the accomconstruction and a construction more easily inpanying description. stalledthan might otherwise be the case. In

Referring now to the drawing, Fig. 1 is a secboth conduits the parts 5 and 8 are arranged tlonal view through a building showing the deto extend across the window so as to form a vice as applied to the rooms thereof; tight joint or connection.

Fig. 2 is a sectional view taken on line 2-2 The conduit 8 is preferably on the exterior of Fig. 1; of the structure and its upper end is preferably Fig. 3 is an enlarged sectional view taken on open so that the air may easily pass out, and

line 3-3 of Fig. 2; also so that rain may also enter the conduit to Fig. 4 is an enlarged sectional view taken on help cool the condenser element I. The rain line 4-4 of Fig. 2; will not ass into the room, but-will pass through Fig. 5 is a. diagrammatic view showing the the receptacle i0 and then out through the circulatory system utilized in the construction valve H. The motor and compressor are 10- of Figs. 1 and 2. cated in a casing H which may be' located at Like numerals refer to like parts throughout any suitable point, preferably in'one corner of so the several figures. the room and which is preferably made sound Referring now to the drawing, wherein there proof. One of the conductors II for the motor is shown one form of the device, in this conmay be run to a suitable point on the wall to struction there is one or more admission opena switch l4 which may be manipulated by means ings, through which air is admitted to the room, ofthe handle l5 or may be arranged to act and one or more discharge openings, through automatically by a thermostat. which air is discharged from the room, the num- The condenser element is preferably located ber depending upon the size of the room and in a higher horizontal plane than the cooling the conditions presented. These openings may element, so that in ordinary use there will be, be formed in any desired manner and for this as it were, two layers of air in the room, a lay- 40 purpose a part of the window openings may be er of cold air in the bottom portion below the used. In the construction shown, these opencooling element and a layer of warmer air in ings are formed by lowering the upper sashes the upper portion above the cooling element, of the windows a sufficient amount. this layer of warmer air being tapped by the In this construction there is illustrated in Fig. discharge opening through which the air is drawn 1 a section through a Portion of a building and by the condenser element. In the construction there are shown separate rooms provided with shown the air inlet has its upper portion above one form of the air circulating and cooling dethe cooling element and its lower portion envice. In this construction the cooling element circling the cooling element. '3 is placed in a conduit 4 which has a portion Any suitable refrigerating apparatus may be 5 leading to the outside atmosphere and this used. As shown herein the refrigerating appa- 'portlon preferably has its admission opening 6' ratus has a circulatory system which is dialocated at the bottom so that rain will not grammatically illustrated in Fig. 5, wherein the enter. This conduit may be located at any derefrigerant after leaving the compressor l6 passes sired points, and I have shown it as being 10- through pipe II to the condenser element 1,

which may be a coil or any other desired form, where it is cooled by a current of air and passes by pipe l8 to the tank [9. The refrigerant then passes by means of pipe 20 to the expansion valve 2|, and thence to the cooling element 3 which may be a coil or any other suitable element, where it cools the air. The refrigerant then passes by pipe 22 back to the compressor l6. In the construction shown herein the coolin element 3 is located in proximity to the air admission opening and the condenser element 1 is located in proximity to the air discharge opening, the piping being arranged to permit the proper circulation of the refrigerant when the parts are in this position, as shown diagrammatically, for example, in Fig. 5.

It will be seen that by means of this arrange ment the outside air is cooled by the cooling element 3 and drops down into the room, and the condenser element 1 heats the air in the conduit 8 and causes it to rise and produce a suction to draw air out of the room, the air leaving the room striking the condenser element so as to act to cool it. By means of this device the 'noise attending the use of a fan or the like for circulating air is done away with. It will be noted that in this construction there is a cooling element, which may be of any form, and that the upper end of the inlet for passing air to the cooling element is above said cooling element. The outside air passes downwardly and past the cooling element so as. to be cooled and caused to drop by gravity into said room. I have found that with this arrangement substantially the same amount of change of temperature of the air is secured regardless of the temperature of the outside atmospheric air, thus requiring no complicated apparatus to secure this result. This cooled air drops down into the room and spreads out therein and passes therealong at a comparatively slow flow and then passes out of the room, not being felt as a draft by the occupants of the room. The condenser element assists in the discharge of the air from the room. The outlet with the condenser element, associated with it, is located in the upper part of the room, where the outlet communicates with the layer of warm air in the room, and by properly disposing and positioning the cooling element and the condenser, it will be seen thatvthe cold air is not discharged from the room but remains in the lower portion of the room, the warmer air at the upper portion being discharged through this outlet. It will further be seen that there is no direct draft from the air inlet to the air outlet due to the pulling action of the condenser, but that the cold air drops down in to the room and fills it up to a certain level, say that at which the cooling element is located, and that the air discharged from the room comes from this upper warmer layer of air, which has its air supplied itself from the cold air in the lower portion of the room.

I have illustrated the invention in connection with various kinds of room, but it will readily be seen that it is applicable to any room which is used by human beings.

I claim:

I.- An air cooling and circulating device comprising a room, a refrigerating apparatus comprising a cooling element located near the ceiling of the room, said room having an air inlet with its upper portion above said cooling element and its lower portion encircling the cooling element,

room into contact with said cooling element so as to cause said air to be cooled thereby and dropped by gravity into said room, the lower discharge end of said air inlet being located at a distance from the floor so as to provide a body of cool air between it and the floor for cooling the occupant of the mom, said room having a discharge above the upper portion of the body of cool air, by means of which warm air is discharged from that portion of the air in the room above the body of cool air.

2. An air cooling and circulating device comprising a room, a refrigerating apparatus comprising a cooling element located above the bottom of the room and a condenser element, said room having an air inlet with its upper portion above said cooling element for'passing air from outside of said room into contact with said cooling element so as to cause said air to be cooled thereby and dropped by gravity into said room, the upper end of said inlet being at an angle to the other portion and projecting through an open window in the room, said room having a discharge above' the bottom thereof by means of which warm air is discharged therefrom, said condenser element being located in said discharge.

3. An air cooling and circulating device comprising a room, a refrigerating apparatus comprising a cooling element and a conduit having a downwardly projecting portion and a laterally projecting portion, the laterally projecting portion projecting through an opening connecting the interior of the room with air outside of said room, said cooling element being located in the downwardly projecting portion of the conduit and causing the air cooled thereby to drop by thermosyphomc action, the lower part of said cooling element substantially defining the upper limit of the cooled area of the room when the device is in operation.

4. An air cooling and circulating device comprising a room, a refrigerating apparatus comprising a cooling element located above the bottom of the room and a condenser element, said room having an air inlet with its upper portion above said cooling element for passing air from -,outside of said room into contact with said coolthereof by means of which warm air is discharged therefrom, said condenser element being located in said discharge, both the cooling element and the condenser element being supported at the top of said room at separated points therealong.

5. An air cooling and circulating device comprising a room having an opening at the top through which air from outside of said room enters said room, a refrigerating apparatus com prising a cooling element mounted in position in said opening and above the floor of the room so that the air from outside of said room comes into contact with said cooling element so as to cause the air to be cooled thereby and dropped by gravity into said room, the opening through which the outside air passes being provided with a conduit which projects downwardly past said cooling element, said room also having a discharge for the air above the bottom thereof, the room acting as a duct to conduct the air from said cooling element to said discharge, said discharge comprising a conduit having two portions at an angle to each other, one portion being outside the room, the other portion projecting through a window opening in the'i-oom.

6. An air cooling and circulating device comprising a room having a window opening at the top through which air from outside of said room enters said room, a refrigerating apparatus comprising a cooling element mounted in proximity to said window opening, so that the air from outside of said room comes into contact with said cooling element so as to cause the air to be cooled thereby and dropped by gravity into said room, said room also having a discharge for the air above the bottom thereof, a condenser element forming a part of 'said refrigerating apparatus and located in said discharge, the condenser element being located in a higher horizontal plane than the cooling element.

'1. An air cooling and circulating device comprising a room having a window opening at the top through which air from outside of said room enters said room, a refrigerating apparatus comprising a coolingeiement mounted in proximity .by gravity into the room.

a conduit having two-parts at, an angle to each other, one outside the room and one connecting with the room, a condenser element forming a part of said refrigerating apparatus and located outside of the room, said condenser element located in the portion of the conduit outside of the room, means for causing air from said discharge to comeinto contact with said condenser element so that said condenser element is used to assist in drawing air out of said room.

8. An air cooling and circulating device comprising a room having a window therein with a sliding upmr sash, a refrigerating apparatus comprising a cooling element, a conduit having a laterally projecting part and a downwardly projecting part, the laterally projecting part being removably hooked over the upper end of the upper sash when it is lowered sufficient for this purpose, the cooling coil being located in the downwardly projecting portion of said conduit, wher'eby the cooling element and conduit are held in position, said conduit conducting air from outside the room to the said cooling element, so that the cooling element cools it and causes it to drop L. MORRISON. 

